style.json

{
    "version": 8,
    "center": [ 0, 0 ],
    "zoom": 6,
    "sources": {
        "geojson": {
            "type": "geojson",
            "data": {
                "type": "FeatureCollection",
                "features": [
                    {
                        "type": "Feature",
                        "properties": {},
                        "geometry": {
                            "type": "Point",
                            "coordinates": [0, 0]
                        }
                    },
                    {
                        "type": "Feature",
                        "properties": {},
                        "geometry": {
                            "type": "Point",
                            "coordinates": [1.1, 0.1]
                        }
                    }
                ]
            }
        }
    },
    "sprite": "local://sprites/sprite",
    "layers": [
        {
            "id": "background",
            "type": "background",
            "interactive": true,
            "paint": {
                "background-color": "black"
            }
        },
        {
            "id": "symbol",
            "type": "symbol",
            "source": "geojson",
            "layout": {
                "icon-image": "bicycle-12",
                "icon-size": 2
            },
            "paint": {
                "icon-opacity": 0.25
            }
        }
    ]
}